The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger‚ additional ultraviolet rays are allowed to pass through. These rays cause cancer‚ cataracts‚ and lowered immunity to diseases.1 What causes the depletion of the ozone layer? In 1970‚ Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His findings started
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Date:7.6.2013 Objectives: Part 1: (i)To learn the technique of TLC and the visualization of colourless components. (ii)Identify the unknown drug by a TCL comparison with standard components. Part2 :to learn the separation technique by using TLC plate in separating a mixture of compound by using spinach leaf. Apparatus:UV lamp‚capillary ‚250 ML beaker Materials:aspirin‚acetaminophen‚caffeine‚unknown A‚unknown B‚TLC plates‚ethyl acetate‚Hexane‚acetic acid‚iodine Introduction: Procedure:
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Discussion Using the Thin Layer Chromatography experiment‚ caffeine was found to be the most polar due to the fact that it stayed closer to the stationary phase. Caffeine contains four amine groups that are extremely polar as a result of the hydrogen bond and amide functional group. Acetaminophen was found to be the second most polar analgesic drug tested. Acetaminophen contains a polar alcohol group on one side and amide group on the other but also includes non-polar functional groups that consisted
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QUIZ III TAKE HOME BMW India‚ seeing the sales of Mercedes Benz and Audi increase way beyond theirs in the first quarter of 2013 decided to start an aggressive sales campaign. As a part of their campaign an advertisement was made which featured BMW X5‚ Audi q7 and Mercedes Benz ml. The advertisement was shot in Manali Leh highway. The symbol of Audi and Mercdez Benz were blurred in the advertisement. It showed BMW X5 in a bright imperial blue colour driven by a young model wearing classy blue
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AQ1.1 What is sound? 窗体顶端 Arch1361 Environment 2. Exam Preparation Quizzes 1. Vibrations that travel through the air and can be heard when they reach a persons ear. 2.A form of energy transmitted through the air (or other material). 窗体底端 AQ1.2 What terms (or “characteristics”) do we use to describe sound? 窗体顶端 Arch1361 Environment 2. Exam Preparation QuizzesFrequency and Level (amplitude) 窗体底端 AQ1.3 What is the difference between Sound Power and Sound Pressure? 窗体顶端 Arch1361 Environment
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Z QUIZ TOPIC: General knowledge 1. Which part of the Constitution of India starts with –“WE THE PEOPLE OF INDIA”? (a) Directive principals (b) Fundamental Duties (c) Preamble (d) Fundamental rights 2. Which pieces are maximum in number at the start of a chess game? (a) Rook (b) Knight (c) Pawn (d) Bishop 3. What kind of animal is Shera‚ the mascot of the 2010 Delhi Commonwealth
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Quiz 2 Econ 201 1.The aggregate expenditure model focuses on the relationship between ________ and ________ in the short run‚ assuming ________ is constant. A) total income; real GDP; the price level B) total production; total income; real GDP C) total spending; real GDP; the price level D) total spending; real GDP; total income 2.In 2001‚ Cisco Systems was surprised by a decline in demand for their equipment‚ resulting in an unexpected increase in
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IE181 Quiz 1 – Model Formulation Formulate the following problems. 1. A trade magazine reports the rated exposure (people/month/peso advertising outlay) for each of five media: TV‚ radio‚ magazines‚ newspapers and outdoor advertising as 22‚ 12‚ 15‚ 10 and 5‚ respectively. The advertising company wants to develop an optimal media mix restricted to the following conditions: a. The total advertising budget is P1 million. b. No more than 50% of the budget is to be expended
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Article Reflection: Ozone Layer Ozone: The Pollution Paradox This article was based on information about ozone pollution. In my opinion this article gave a lot of valuable information and I learned a lot of things I never had knowledge of. For example‚ the atmosphere forms and destroys the ozone‚ the ozone can have an effect on the human body and the article also provided information on what we could do about the ozone layer to help the atmosphere. I had a little bit of information in my
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ROLE OF YOUTH IN OZONE LAYER PROTECTION Ozone layer plays a vital role in protecting animals‚ human beings and plants from ultraviolet radiation. Ozone layer is destroyed by a group of manufactured or human made chemicals such as chlorine bromine. These chemicals are called "ozone-depleting substances". Ozone layer is destroyed by some natural’s ways and some humane made activities. A single molecule of chlorine can break apart thousands of molecules of ozone. Chlorofluorocarbons the most widely
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